Understanding Exposure Modes

A-DEP

A-DEP is the mode the camera assesses the distances between the lens and major objects in the frame and tries to choose an aperture that keeps the objects within the zone of sharp focus.

Av

This mode is where you select the aperture setting while the camera selects the appropriate shutter speed for proper exposure of the picture.

Tv

Tv also known as shutter priority auto exposure is the mode where you select the shutter speed and the camera chooses the aperture setting that produces good exposure.

P

P also known as programmed auto exposure is where the camera selects both the aperture and shutter speed for you but you can choose from different combinations of the two.

M

M also known as manual exposure is where you are able to specify both aperture and shutter speed